New "Goldoon" Botnet Targets D-Link Routers With Decade-Old Flaw

A never-before-seen botnet called Goldoon has been observed targeting D-Link routers with a nearly decade-old critical security flaw with the goal of using the compromised devices for further attacks. The vulnerability in question is CVE-2015-2051 (CVSS score: 9.8), which affects D-Link DIR-645 routers and allows remote attackers to execute arbitrary

New Cuttlefish Malware Hijacks Router Connections, Sniffs for Cloud Credentials

A new malware called Cuttlefish is targeting small office and home office (SOHO) routers with the goal of stealthily monitoring all traffic through the devices and gather authentication data from HTTP GET and POST requests. "This malware is modular, designed primarily to steal authentication material found in web requests that transit the router from the adjacent

Palo Alto Networks Outlines Remediation for Critical PAN-OS Flaw Under Attack

Palo Alto Networks has shared remediation guidance for a recently disclosed critical security flaw impacting PAN-OS that has come under active exploitation. The vulnerability, tracked as CVE-2024-3400 (CVSS score: 10.0), could be weaponized to obtain unauthenticated remote shell command execution on susceptible devices. It has been addressed in

State-Sponsored Hackers Exploit Two Cisco Zero-Day Vulnerabilities for Espionage

A new malware campaign leveraged two zero-day flaws in Cisco networking gear to deliver custom malware and facilitate covert data collection on target environments. Cisco Talos, which dubbed the activity ArcaneDoor, attributed it as the handiwork of a previously undocumented sophisticated state-sponsored actor it tracks under the name UAT4356 (aka Storm-1849 by Microsoft). "UAT4356

'ArcaneDoor' Cyberspies Hacked Cisco Firewalls to Access Government Networks

Sources suspect China is behind the targeted exploitation of two zero-day vulnerabilities in Cisco’s security appliances.

ToddyCat Hacker Group Uses Advanced Tools for Industrial-Scale Data Theft

The threat actor known as ToddyCat has been observed using a wide range of tools to retain access to compromised environments and steal valuable data. Russian cybersecurity firm Kaspersky characterized the adversary as relying on various programs to harvest data on an "industrial scale" from primarily governmental organizations, some of them defense related, located in

Pentera's 2024 Report Reveals Hundreds of Security Events per Week, Highlighting the Criticality of Continuous Validation

Over the past two years, a shocking 51% of organizations surveyed in a leading industry report have been compromised by a cyberattack. Yes, over half.  And this, in a world where enterprises deploy an average of 53 different security solutions to safeguard their digital domain.  Alarming? Absolutely. A recent survey of CISOs and CIOs, commissioned by Pentera and

MITRE Corporation Breached by Nation-State Hackers Exploiting Ivanti Flaws

The MITRE Corporation revealed that it was the target of a nation-state cyber attack that exploited two zero-day flaws in Ivanti Connect Secure appliances starting in January 2024. The intrusion led to the compromise of its Networked Experimentation, Research, and Virtualization Environment (NERVE), an unclassified research and prototyping network. The unknown adversary "performed reconnaissance

Palo Alto Networks Discloses More Details on Critical PAN-OS Flaw Under Attack

Palo Alto Networks has shared more details of a critical security flaw impacting PAN-OS that has come under active exploitation in the wild by malicious actors. The company described the vulnerability, tracked as CVE-2024-3400 (CVSS score: 10.0), as "intricate" and a combination of two bugs in versions PAN-OS 10.2, PAN-OS 11.0, and PAN-OS 11.1 of the software. "In

Critical Update: CrushFTP Zero-Day Flaw Exploited in Targeted Attacks

Users of the CrushFTP enterprise file transfer software are being urged to update to the latest version following the discovery of a security flaw that has come under targeted exploitation in the wild. "CrushFTP v11 versions below 11.1 have a vulnerability where users can escape their VFS and download system files," CrushFTP said in an advisory released Friday.

BlackTech Targets Tech, Research, and Gov Sectors New 'Deuterbear' Tool

Technology, research, and government sectors in the Asia-Pacific region have been targeted by a threat actor called BlackTech as part of a recent cyber attack wave. The intrusions pave the way for an updated version of modular backdoor dubbed Waterbear as well as its enhanced successor referred to as Deuterbear. Cybersecurity firm Trend Micro is tracking the

OfflRouter Malware Evades Detection in Ukraine for Almost a Decade

Select Ukrainian government networks have remained infected with a malware called OfflRouter since 2015. Cisco Talos said its findings are based on an analysis of over 100 confidential documents that were infected with the VBA macro virus and uploaded to the VirusTotal malware scanning platform since 2018. More than 20 such documents have been uploaded since 2022. "The documents contained VBA

Critical Atlassian Flaw Exploited to Deploy Linux Variant of Cerber Ransomware

Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware. The attacks leverage CVE-2023-22518 (CVSS score: 9.1), a critical security vulnerability impacting the Atlassian Confluence Data Center and Server that allows an unauthenticated attacker to reset Confluence and create an administrator account. Armed with this access, a

Cisco Warns of Global Surge in Brute-Force Attacks Targeting VPN and SSH Services

Cisco is warning about a global surge in brute-force attacks targeting various devices, including Virtual Private Network (VPN) services, web application authentication interfaces, and SSH services, since at least March 18, 2024. "These attacks all appear to be originating from TOR exit nodes and a range of other anonymizing tunnels and proxies," Cisco Talos said. Successful attacks could

Widely-Used PuTTY SSH Client Found Vulnerable to Key Recovery Attack

The maintainers of the PuTTY Secure Shell (SSH) and Telnet client are alerting users of a critical vulnerability impacting versions from 0.68 through 0.80 that could be exploited to achieve full recovery of NIST P-521 (ecdsa-sha2-nistp521) private keys. The flaw has been assigned the CVE identifier CVE-2024-31497, with the discovery credited to researchers Fabian Bäumer and Marcus

Zero-Day Alert: Critical Palo Alto Networks PAN-OS Flaw Under Active Attack

Palo Alto Networks is warning that a critical flaw impacting PAN-OS software used in its GlobalProtect gateways is being actively exploited in the wild. Tracked as CVE-2024-3400, the issue has a CVSS score of 10.0, indicating maximum severity. "A command injection vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software for specific PAN-OS versions and distinct

Critical Flaws Leave 92,000 D-Link NAS Devices Vulnerable to Malware Attacks

Threat actors are actively scanning and exploiting a pair of security flaws that are said to affect as many as 92,000 internet-exposed D-Link network-attached storage (NAS) devices. Tracked as CVE-2024-3272 (CVSS score: 9.8) and CVE-2024-3273 (CVSS score: 7.3), the vulnerabilities impact legacy D-Link products that have reached end-of-life (EoL) status. D-Link, in

Watch Out for 'Latrodectus' - This Malware Could Be In Your Inbox

Threat hunters have discovered a new malware called Latrodectus that has been distributed as part of email phishing campaigns since at least late November 2023. "Latrodectus is an up-and-coming downloader with various sandbox evasion functionality," researchers from Proofpoint and Team Cymru said in a joint analysis published last week, adding it's designed to retrieve

New HTTP/2 Vulnerability Exposes Web Servers to DoS Attacks

New research has found that the CONTINUATION frame in the HTTP/2 protocol can be exploited to conduct denial-of-service (DoS) attacks. The technique has been codenamed HTTP/2 CONTINUATION Flood by security researcher Bartek Nowotarski, who reported the issue to the CERT Coordination Center (CERT/CC) on January 25, 2024. "Many HTTP/2 implementations do not properly limit or sanitize the

Detecting Windows-based Malware Through Better Visibility

Despite a plethora of available security solutions, more and more organizations fall victim to Ransomware and other threats. These continued threats aren't just an inconvenience that hurt businesses and end users - they damage the economy, endanger lives, destroy businesses and put national security at risk. But if that wasn’t enough – North Korea appears to be using revenue from cyber

TheMoon Botnet Resurfaces, Exploiting EoL Devices to Power Criminal Proxy

A botnet previously considered to be rendered inert has been observed enslaving end-of-life (EoL) small home/small office (SOHO) routers and IoT devices to fuel a criminal proxy service called Faceless. "TheMoon, which emerged in 2014, has been operating quietly while growing to over 40,000 bots from 88 countries in January and February of 2024," the Black Lotus Labs team at Lumen

Linux Version of DinodasRAT Spotted in Cyber Attacks Across Several Countries

A Linux version of a multi-platform backdoor called DinodasRAT has been detected in the wild targeting China, Taiwan, Turkey, and Uzbekistan, new findings from Kaspersky reveal. DinodasRAT, also known as XDealer, is a C++-based malware that offers the ability to harvest a wide range of sensitive data from compromised hosts. In October 2023, Slovak cybersecurity firm ESET&nbsp

New Webinar: Avoiding Application Security Blind Spots with OPSWAT and F5

Considering the ever-changing state of cybersecurity, it's never too late to ask yourself, "am I doing what's necessary to keep my organization's web applications secure?" The continuous evolution of technology introduces new and increasingly sophisticated threats daily, posing challenges to organizations all over the world and across the broader spectrum of industries striving to maintain

CISA Warns: Hackers Actively Attacking Microsoft SharePoint Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw impacting Microsoft Sharepoint Server to its Known Exploited Vulnerabilities (KEV) catalog based on evidence of active exploitation in the wild. The vulnerability, tracked as CVE-2023-24955 (CVSS score: 7.2), is a critical remote code execution flaw that allows an authenticated attacker with Site

Russian Hackers May Have Targeted Ukrainian Telecoms with Upgraded 'AcidPour' Malware

The data wiping malware called AcidPour may have been deployed in attacks targeting four telecom providers in Ukraine, new findings from SentinelOne show. The cybersecurity firm also confirmed connections between the malware and AcidRain, tying it to threat activity clusters associated with Russian military intelligence. "AcidPour's expanded capabilities would enable it to better

New 'Loop DoS' Attack Impacts Hundreds of Thousands of Systems

A novel denial-of-service (DoS) attack vector has been found to target application-layer protocols based on User Datagram Protocol (UDP), putting hundreds of thousands of hosts likely at risk. Called Loop DoS attacks, the approach pairs "servers of these protocols in such a way that they communicate with each other indefinitely," researchers from the CISPA Helmholtz-Center for

Cisco and Nvidia: Redefining Workload Security

There has been an exponential increase in breaches within enterprises despite the carefully constructed and controlled perimeters that exist around applications and data. Once an attacker can access… Read more on Cisco Blogs

U.S. EPA Forms Task Force to Protect Water Systems from Cyberattacks

The U.S. Environmental Protection Agency (EPA) said it's forming a new "Water Sector Cybersecurity Task Force" to devise methods to counter the threats faced by the water sector in the country. "In addition to considering the prevalent vulnerabilities of water systems to cyberattacks and the challenges experienced by some systems in adopting best practices, this Task Force in its deliberations

Fortinet Warns of Severe SQLi Vulnerability in FortiClientEMS Software

Fortinet has warned of a critical security flaw impacting its FortiClientEMS software that could allow attackers to achieve code execution on affected systems. "An improper neutralization of special elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] in FortiClientEMS may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted

Cisco Issues Patch for High-Severity VPN Hijacking Bug in Secure Client

Cisco has released patches to address a high-severity security flaw impacting its Secure Client software that could be exploited by a threat actor to open a VPN session with that of a targeted user. The networking equipment company described the vulnerability, tracked as CVE-2024-20337 (CVSS score: 8.2), as allowing an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF

QEMU Emulator Exploited as Tunneling Tool to Breach Company Network

Threat actors have been observed leveraging the QEMU open-source hardware emulator as tunneling software during a cyber attack targeting an unnamed "large company" to connect to their infrastructure. While a number of legitimate tunneling tools like Chisel, FRP, ligolo, ngrok, and Plink have been used by adversaries to their advantage, the development marks the first QEMU that has been

Watch Out for Spoofed Zoom, Skype, Google Meet Sites Delivering Malware

Threat actors have been leveraging fake websites advertising popular video conferencing software such as Google Meet, Skype, and Zoom to deliver a variety of malware targeting both Android and Windows users since December 2023. “The threat actor is distributing Remote Access Trojans (RATs) including SpyNote RAT for Android platforms, and NjRAT and DCRat for Windows

Warning: Thread Hijacking Attack Targets IT Networks, Stealing NTLM Hashes

The threat actor known as TA577 has been observed using ZIP archive attachments in phishing emails with an aim to steal NT LAN Manager (NTLM) hashes. The new attack chain “can be used for sensitive information gathering purposes and to enable follow-on activity,” enterprise security firm Proofpoint said in a Monday report. At least two campaigns taking advantage of this

Critical JetBrains TeamCity On-Premises Flaws Could Lead to Server Takeovers

A new pair of security vulnerabilities have been disclosed in JetBrains TeamCity On-Premises software that could be exploited by a threat actor to take control of affected systems. The flaws, tracked as CVE-2024-27198 (CVSS score: 9.8) and CVE-2024-27199 (CVSS score: 7.3), have been addressed in version 2023.11.4. They impact all TeamCity On-Premises versions through 2023.11.3. “The

GTPDOOR Linux Malware Targets Telecoms, Exploiting GPRS Roaming Networks

Threat hunters have discovered a new Linux malware called GTPDOOR that’s designed to be deployed in telecom networks that are adjacent to GPRS roaming exchanges (GRX) The malware is novel in the fact that it leverages the GPRS Tunnelling Protocol (GTP) for command-and-control (C2) communications. GPRS roaming allows subscribers to access their GPRS services while they are

Open-Source Xeno RAT Trojan Emerges as a Potent Threat on GitHub

An "intricately designed" remote access trojan (RAT) called Xeno RAT has been made available on GitHub, making it easily accessible to other actors at no extra cost. Written in C# and compatible with Windows 10 and Windows 11 operating systems, the open-source RAT comes with a "comprehensive set of features for remote system management," according to its developer, who goes by the name

Cybercriminals Weaponizing Open-Source SSH-Snake Tool for Network Attacks

A recently open-sourced network mapping tool called SSH-Snake has been repurposed by threat actors to conduct malicious activities. "SSH-Snake is a self-modifying worm that leverages SSH credentials discovered on a compromised system to start spreading itself throughout the network," Sysdig researcher Miguel Hernández said. "The worm automatically searches through known credential

New Wi-Fi Vulnerabilities Expose Android and Linux Devices to Hackers

Cybersecurity researchers have identified two authentication bypass flaws in open-source Wi-Fi software found in Android, Linux, and ChromeOS devices that could trick users into joining a malicious clone of a legitimate network or allow an attacker to join a trusted network without a password. The vulnerabilities, tracked as CVE-2023-52160 and CVE-2023-52161, have been discovered following a

Critical Flaws Found in ConnectWise ScreenConnect Software - Patch Now

ConnectWise has released software updates to address two security flaws in its ScreenConnect remote desktop and access software, including a critical bug that could enable remote code execution on affected systems. The vulnerabilities are listed below - CVE-2024-1708 (CVSS score: 8.4) - Improper limitation of a pathname to a restricted directory aka "path traversal" CVE-2024-1709 (CVSS score:

Malicious 'SNS Sender' Script Abuses AWS for Bulk Smishing Attacks

A malicious Python script known as SNS Sender is being advertised as a way for threat actors to send bulk smishing messages by abusing Amazon Web Services (AWS) Simple Notification Service (SNS). The SMS phishing messages are designed to propagate malicious links that are designed to capture victims' personally identifiable information (PII) and payment card details, SentinelOne 

U.S. Government Disrupts Russia-Linked Botnet Engaged in Cyber Espionage

The U.S. government on Thursday said it disrupted a botnet comprising hundreds of small office and home office (SOHO) routers in the country that was put to use by the Russia-linked APT28 actor to conceal its malicious activities. "These crimes included vast spear-phishing and similar credential harvesting campaigns against targets of intelligence interest to the Russian government, such as U.S.

Microsoft Rolls Out Patches for 73 Flaws, Including 2 Windows Zero-Days

Microsoft has released patches to address 73 security flaws spanning its software lineup as part of its Patch Tuesday updates for February 2024, including two zero-days that have come under active exploitation. Of the 73 vulnerabilities, 5 are rated Critical, 65 are rated Important, and three and rated Moderate in severity. This is in addition to 24 flaws that have been fixed

Why Are Compromised Identities the Nightmare to IR Speed and Efficiency?

Incident response (IR) is a race against time. You engage your internal or external team because there's enough evidence that something bad is happening, but you’re still blind to the scope, the impact, and the root cause. The common set of IR tools and practices provides IR teams with the ability to discover malicious files and outbound network connections. However, the identity aspect - namely

Warning: New Ivanti Auth Bypass Flaw Affects Connect Secure and ZTA Gateways

Ivanti has alerted customers of yet another high-severity security flaw in its Connect Secure, Policy Secure, and ZTA gateway devices that could allow attackers to bypass authentication. The issue, tracked as CVE-2024-22024, is rated 8.3 out of 10 on the CVSS scoring system. "An XML external entity or XXE vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x), Ivanti

Chinese Hackers Operate Undetected in U.S. Critical Infrastructure for Half a Decade

The U.S. government on Wednesday said the Chinese state-sponsored hacking group known as Volt Typhoon had been embedded into some critical infrastructure networks in the country for at least five years. Targets of the threat actor include communications, energy, transportation, and water and wastewater systems sectors in the U.S. and Guam. "Volt Typhoon's choice of targets and pattern

Critical Patches Released for New Flaws in Cisco, Fortinet, VMware Products

Cisco, Fortinet, and VMware have released security fixes for multiple security vulnerabilities, including critical weaknesses that could be exploited to perform arbitrary actions on affected devices. The first set from Cisco consists of three flaws – CVE-2024-20252 and CVE-2024-20254 (CVSS score: 9.6) and CVE-2024-20255 (CVSS score: 8.2) – impacting Cisco Expressway Series that could allow an

After FBI Takedown, KV-Botnet Operators Shift Tactics in Attempt to Bounce Back

The threat actors behind the KV-botnet made "behavioral changes" to the malicious network as U.S. law enforcement began issuing commands to neutralize the activity. KV-botnet is the name given to a network of compromised small office and home office (SOHO) routers and firewall devices across the world, with one specific cluster acting as a covert data transfer system for other Chinese

Critical Boot Loader Vulnerability in Shim Impacts Nearly All Linux Distros

The maintainers of shim have released version 15.8 to address six security flaws, including a critical bug that could pave the way for remote code execution under specific circumstances. Tracked as CVE-2023-40547 (CVSS score: 9.8), the vulnerability could be exploited to achieve a Secure Boot bypass. Bill Demirkapi of the Microsoft Security Response Center (MSRC) has been&

Chinese Hackers Exploited FortiGate Flaw to Breach Dutch Military Network

Chinese state-backed hackers broke into a computer network that's used by the Dutch armed forces by targeting Fortinet FortiGate devices. "This [computer network] was used for unclassified research and development (R&D)," the Dutch Military Intelligence and Security Service (MIVD) said in a statement. "Because this system was self-contained, it did not lead to any damage to the

Hands-On Review: SASE-based XDR from Cato Networks

Companies are engaged in a seemingly endless cat-and-mouse game when it comes to cybersecurity and cyber threats. As organizations put up one defensive block after another, malicious actors kick their game up a notch to get around those blocks. Part of the challenge is to coordinate the defensive abilities of disparate security tools, even as organizations have limited resources and a dearth of

Mastodon Vulnerability Allows Hackers to Hijack Any Decentralized Account

The decentralized social network Mastodon has disclosed a critical security flaw that enables malicious actors to impersonate and take over any account. "Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account," the maintainers said in a terse advisory. The vulnerability, tracked as CVE-2024-23832, has a severity rating of 9.4 out of

U.S. Feds Shut Down China-Linked "KV-Botnet" Targeting SOHO Routers

The U.S. government on Wednesday said it took steps to neutralize a botnet comprising hundreds of U.S.-based small office and home office (SOHO) routers hijacked by a China-linked state-sponsored threat actor called Volt Typhoon and blunt the impact posed by the hacking campaign. The existence of the botnet, dubbed KV-botnet, was first disclosed by the Black Lotus Labs team at

Critical Cisco Flaw Lets Hackers Remotely Take Over Unified Comms Systems

Cisco has released patches to address a critical security flaw impacting Unified Communications and Contact Center Solutions products that could permit an unauthenticated, remote attacker to execute arbitrary code on an affected device. Tracked as CVE-2024-20253 (CVSS score: 9.9), the issue stems from improper processing of user-provided data that a threat actor could abuse to send a

SystemBC Malware's C2 Server Analysis Exposes Payload Delivery Tricks

Cybersecurity researchers have shed light on the command-and-control (C2) server workings of a known malware family called SystemBC. "SystemBC can be purchased on underground marketplaces and is supplied in an archive containing the implant, a command-and-control (C2) server, and a web administration portal written in PHP," Kroll said in an analysis published last week. The risk

From Megabits to Terabits: Gcore Radar Warns of a New Era of DDoS Attacks

As we enter 2024, Gcore has released its latest Gcore Radar report, a twice-annual publication in which the company releases internal analytics to track DDoS attacks. Gcore’s broad, internationally distributed network of scrubbing centers allows them to follow attack trends over time. Read on to learn about DDoS attack trends for Q3–Q4 of 2023, and what they mean for developing a robust

Chinese Hackers Silently Weaponized VMware Zero-Day Flaw for 2 Years

An advanced China-nexus cyber espionage group previously linked to the exploitation of security flaws in VMware and Fortinet appliances has been attributed to the abuse of a critical vulnerability in VMware vCenter Server as a zero-day since late 2021. "UNC3886 has a track record of utilizing zero-day vulnerabilities to complete their mission without being detected, and this latest example

CISA Issues Emergency Directive to Federal Agencies on Ivanti Zero-Day Exploits

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday issued an emergency directive urging Federal Civilian Executive Branch (FCEB) agencies to implement mitigations against two actively exploited zero-day flaws in Ivanti Connect Secure (ICS) and Ivanti Policy Secure (IPS) products. The development arrives as the vulnerabilities – an authentication bypass

High-Severity Flaws Uncovered in Bosch Thermostats and Smart Nutrunners

Multiple security vulnerabilities have been disclosed in Bosch BCC100 thermostats and Rexroth NXA015S-36V-B smart nutrunners that, if successfully exploited, could allow attackers to execute arbitrary code on affected systems. Romanian cybersecurity firm Bitdefender, which discovered the flaw in Bosch BCC100 thermostats last August, said the issue could be weaponized by an attacker to

Critical RCE Vulnerability Uncovered in Juniper SRX Firewalls and EX Switches

Juniper Networks has released updates to fix a critical remote code execution (RCE) vulnerability in its SRX Series firewalls and EX Series switches. The issue, tracked as CVE-2024-21591, is rated 9.8 on the CVSS scoring system. “An out-of-bounds write vulnerability in J-Web of Juniper Networks Junos OS SRX Series and EX Series allows an unauthenticated, network-based attacker to cause a

Cisco Fixes High-Risk Vulnerability Impacting Unity Connection Software

Cisco has released software updates to address a critical security flaw impacting Unity Connection that could permit an adversary to execute arbitrary commands on the underlying system. Tracked as CVE-2024-20272 (CVSS score: 7.3), the vulnerability is an arbitrary file upload bug residing in the web-based management interface and is the result of a lack of authentication in a specific